CVE-2025-43858

Description

YoutubeDLSharp is a wrapper for the command-line video downloaders youtube-dl and yt-dlp. In versions starting from 1.0.0-beta4 and prior to 1.1.2, an unsafe conversion of arguments allows the injection of a malicious commands when starting `yt-dlp` from a commands prompt running on Windows OS with the `UseWindowsEncodingWorkaround` value defined to true (default behavior). If a user is using built-in methods from the YoutubeDL.cs file, the value is true by default and a user cannot disable it from these methods. This issue has been patched in version 1.1.2.

Reserved 2025-04-17 | Published 2025-04-24 | Updated 2025-04-24 | Assigner GitHub_M

Problem types

CWE-77: Improper Neutralization of Special Elements used in a Command ('Command Injection')

CWE-78: Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')

Product status

>= 1.0.0-beta4, < 1.1.2
affected

References

github.com/...LSharp/security/advisories/GHSA-2jh5-g5ch-43q5

github.com/...ommit/b6051372bd5af30f95f73de47d9bc71c3a07de0f

github.com/...ommit/fdf3256da18d0e2da4a2f33ad4a1b72ff8273a50

cve.org (CVE-2025-43858)

nvd.nist.gov (CVE-2025-43858)

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